In a small bowl, combine cookie crumbs and sugar; stir in butter. Press onto the bottom and 1 in up the sides of a greased 9-in. pan. Place pan on a baking sheet; set aside.

In a large mixing bowl, beat cream cheese and sugar until smooth. Add eggs; beat on low just until combined. Add sour cream and vanilla; beat just until blended. Pour over crust; set aside.

In another mixing bowl, cream butter and sugars on medium speed until light and fluffy. Add water and vanilla. Gradually add flour. Stir in 1 cup chocolate chips. Drop dough by teaspoonfuls over filling, gently pushing dough below surface (dough should be completely covered by filling). Place pan on a baking sheet.

Bake at 350° for 45-55 minutes or until center is almost set. Cool on a wire rack for 10 minutes. Carefully run a knife around edge of pan to loosen; cool 1 hour longer. Refrigerate overnight.